(CNN) – The perpetrator of Monday's terror bombing at the finish line of the Boston Marathon "messed with the wrong people," Tagg Romney asserted in an interview Tuesday.
"It's such a cowardly act, whoever did this," said Romney, the oldest son of 2012 GOP presidential nominee Mitt Romney. "Then you see the warmth of the first responders, and the people around who rushed to the scene. Such a contrast to their bravery. It just really is a family event. And it's the best of Boston. It's wonderful to see how people have been responding and how people are pulling together."
Romney said he was at Fenway Park with his children watching the Red Sox, and had hopped in a cab moments before the duel explosions which left three dead and scores injured.
"It's such a horrifying and sickening event and it's so sad for the city," he said on CNN's "Starting Point."
A point of light, he said, is that "Bostonians are resilient."
"They're going to come together," he continued. "They messed with the wrong people. There's going to be a period of grief, I'm sure there will be some anger. And we're going to want to figure out how to keep this from happening again. Not just here but all over the country."
Tagg Romney, who lives in in the metro Boston area, was a key adviser to his father during last year's presidential campaign. He's the founder of Solamere Capital, a Boston-based investment firm.